Prognostic significance of ischemic electrocardiographic changes with regadenoson stress myocardial perfusion imaging
Background In patients undergoing regadenoson SPECT myocardial perfusion imaging
(MPI), the prognostic value of ischemic ST-segment depression (ST↓) and the optimal ST↓
threshold have not been studied. Methods A retrospective cohort study of consecutive
patients referred for regadenoson stress MPI was conducted. Patients with uninterpretable
ECG were excluded. Two diagnostic thresholds of horizontal or downsloping ST↓ were
studied,≥ 0.5 mm and≥ 1.0 mm. The primary endpoint was the composite major adverse …
(MPI), the prognostic value of ischemic ST-segment depression (ST↓) and the optimal ST↓
threshold have not been studied. Methods A retrospective cohort study of consecutive
patients referred for regadenoson stress MPI was conducted. Patients with uninterpretable
ECG were excluded. Two diagnostic thresholds of horizontal or downsloping ST↓ were
studied,≥ 0.5 mm and≥ 1.0 mm. The primary endpoint was the composite major adverse …
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